var speedd=20; //数字越大速度越慢
var tabd=document.getElementById("demod");
var tabd1=document.getElementById("demod1");
var tabd2=document.getElementById("demod2");
tabd2.innerHTML=tabd1.innerHTML;
function Marqueed(){
if(tabd2.offsetWidth-tabd.scrollLeft<=0)
tabd.scrollLeft-=tabd1.offsetWidth
else{
tabd.scrollLeft++;
}
}
var MyMard=setInterval(Marqueed,speedd);
tabd.onmouseover=function() {clearInterval(MyMard)};
tabd.onmouseout=function() {MyMard=setInterval(Marqueed,speedd)};